I'm a little disappointed that the entire point of this season, leading up to the wedding, and it was all under Future Ted's narration. Oh well. The episode overall worked for me. And although I've never been 100% convinced about Barney/Robin, it won me over here.
And I would love to see the Mother with the gang. I'm finding it really surprising that we've not seen it happen this season at all. Just Ted with the Mother.